Citation:
ZHAO Guo-Xin, DU Chen-Xia, YE Bao-Xian. Synthesis and Electrochemical Characteristics of A New Oxadiazol Derivative with β-Diketonate[J]. Chinese Journal of Applied Chemistry,
;2007, 24(7): 742-746.
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4-(5-Methyl-oxadiazole)-phenyl-1,3 butyl diketonate was synthesized via dehydration reaction of 4-acetyl phenylformic ester and hydrazine hydrate,and characterized by IR and 1H NMR.UV-Vis spectra and electrochemical characteristics of the compound were investigated.In addition,the energy gap (Eg) was evaluated to be 2.72 eV from the onset absorption wavelength (λonset/nm) of the UV-Vis spectra,and the energy levels of the highest occupied molecular orbital (HOMO) and the lowest unoccupied molecular orbital (LUMO) were calculated by cyclic voltammetry (CV) and UV-Vis spectrometry.The measurement results of the energy levels indicate that the electron affinity of the compound is higher than that of PBD which is the normal electron-transporting material.Thus it could improve the efficiency of the electroluminescent device when it is used as electron transport layer.
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Keywords:
- oxadiazole,
- β-diketonate,
- UV-Vis spectra,
- electrochemistry,
- energy levels
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